Dementia is a condition of the brain which causes a gradual loss of mental ability, including problems with memory, understanding, judgement, thinking and language. Other problems commonly develop such as changes in personality. (3)

What is Alzheimer's disease?

Alzheimer's disease is the most common type of dementia, causing about half of all cases. In Alzheimer's the brain shrinks and the numbers of nerve fibres in the brain gradually reduce. The amounts of brain chemicals which help to send messages between brain cells are also reduced. Alzheimer's gradually worsens over time.

What can be done to cut your risks of developing Alzheimer's disease or another form of dementia?